Base | Representation |
---|---|
bin | 110111111011111010… |
… | …1110111011110110111 |
3 | 102111001112010112102022 |
4 | 1233313311313132313 |
5 | 3432002241211411 |
6 | 131103335503355 |
7 | 11451511640312 |
oct | 1576765673667 |
9 | 374045115368 |
10 | 120122210231 |
11 | 46a41946511 |
12 | 1b344827b5b |
13 | b43460630a |
14 | 5b57679979 |
15 | 31d0a95edb |
hex | 1bf7d777b7 |
120122210231 has 4 divisors (see below), whose sum is σ = 120167388600. Its totient is φ = 120077031864.
The previous prime is 120122210227. The next prime is 120122210233. The reversal of 120122210231 is 132012221021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132012221021 = 83 ⋅1590508687.
It is a cyclic number.
It is not a de Polignac number, because 120122210231 - 22 = 120122210227 is a prime.
It is a super-2 number, since 2×1201222102312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120122210233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22585196 + ... + 22590513.
It is an arithmetic number, because the mean of its divisors is an integer number (30041847150).
Almost surely, 2120122210231 is an apocalyptic number.
120122210231 is a deficient number, since it is larger than the sum of its proper divisors (45178369).
120122210231 is an equidigital number, since it uses as much as digits as its factorization.
120122210231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45178368.
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 120122210231 its reverse (132012221021), we get a palindrome (252134431252).
The spelling of 120122210231 in words is "one hundred twenty billion, one hundred twenty-two million, two hundred ten thousand, two hundred thirty-one".
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